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The Earning Ability of Farmers who Have Received Vocational Training
Walter Stephenson Newman
其他書名
A Comparison of the Former Vocational Students Now Farming with the Earnings of an Equivalent Group in Farming who Did Not Receive Vocational Training
出版Pennsylvania State College, 1933
URLhttp://books.google.com.hk/books?id=quIV7254IlkC&hl=&source=gbs_api
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